BUG: TASK stack guard page was hit at ffffc9000fb7fff8 (stack is ffffc9000fb80000..ffffc9000fb88000)
Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 971 Comm: syz.1.178 Not tainted syzkaller #0 67ca8ba3aa6540f07d3e691c9ce537bd6d0a0d70
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:cgroup_rstat_updated+0x74/0x810 kernel/cgroup/rstat.c:86
Code: 48 3b d6 1a 87 48 c7 44 24 50 90 db 80 81 48 8d 4c 24 40 48 c1 e9 03 48 b8 f1 f1 f1 f1 f8 f3 f3 f3 48 89 4c 24 38 48 89 04 19 <e8> 47 c7 06 00 44 89 74 24 0c 4d 63 e6 bf 08 00 00 00 44 89 e6 e8
RSP: 0018:ffffc9000fb80000 EFLAGS: 00010802
RAX: f3f3f3f8f1f1f1f1 RBX: dffffc0000000000 RCX: 1ffff92001f70008
RDX: ffffc900016a1000 RSI: 0000000000000000 RDI: ffff88810ebce000
RBP: ffffc9000fb800c8 R08: 0000000000000003 R09: 0000000000000004
R10: 0000000000000000 R11: ffffffff815f4580 R12: dffffc0000000000
R13: ffff88810ebce000 R14: 0000000000000000 R15: ffffe8ffffc349d8
FS:  00007fdf3d0e36c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000fb7fff8 CR3: 000000011f682000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 cgroup_base_stat_cputime_account_end kernel/cgroup/rstat.c:514 [inline]
 __cgroup_account_cputime+0x82/0xd0 kernel/cgroup/rstat.c:525
 cgroup_account_cputime include/linux/cgroup.h:724 [inline]
 update_se+0x28c/0x410 kernel/sched/fair.c:1241
 update_curr+0xf8/0x9e0 kernel/sched/fair.c:1286
 put_prev_entity+0x41/0x160 kernel/sched/fair.c:5707
 put_prev_task_fair+0x54/0x80 kernel/sched/fair.c:9162
 put_prev_set_next_task+0x12e/0x1b0 kernel/sched/sched.h:2611
 __pick_next_task kernel/sched/core.c:6700 [inline]
 pick_next_task kernel/sched/core.c:7196 [inline]
 __schedule+0xa4d/0x1ea0 kernel/sched/core.c:7790
 preempt_schedule_irq+0xab/0x110 kernel/sched/core.c:8190
 raw_irqentry_exit_cond_resched+0x32/0x40 kernel/entry/common.c:311
 irqentry_exit+0x4a/0x60 kernel/entry/common.c:354
 sysvec_reschedule_ipi+0x72/0x80 arch/x86/kernel/smp.c:248
 asm_sysvec_reschedule_ipi+0x1f/0x30 arch/x86/include/asm/idtentry.h:707
RIP: 0010:update_stack_state+0x84/0x4b0 arch/x86/kernel/unwind_frame.c:208
Code: 09 e8 c0 fd 9a 00 48 8b 7d c8 48 8b 07 48 85 c0 74 08 48 05 a8 00 00 00 eb 21 4c 8d 73 38 4c 89 f0 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 f7 e8 92 fd 9a 00 49 8b 06 48 83 c0 10 48 89 45 a0 44
RSP: 0018:ffffc9000fb80638 EFLAGS: 00000246
RAX: 1ffff92001f700f8 RBX: ffffc9000fb80788 RCX: 000000000fb80700
RDX: dffffc0000000000 RSI: ffffc9000fb815f0 RDI: ffffc9000fb807e0
RBP: ffffc9000fb806f8 R08: ffffc9000fb80850 R09: ffffc9000fb80848
R10: 0000000000000007 R11: ffffffff8175d0a0 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc9000fb807c0 R15: ffffc9000fb815f0
 unwind_next_frame+0x3c1/0x750 arch/x86/kernel/unwind_frame.c:315
 arch_stack_walk+0x138/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x4a/0x60 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4871
 krealloc_noprof+0xfa/0x130 mm/slab_common.c:-1
 <kernel::alloc::allocator::ReallocFunc>::call rust/kernel/alloc/allocator.rs:102 [inline]
 <kernel::alloc::allocator::Kmalloc as kernel::alloc::Allocator>::realloc rust/kernel/alloc/allocator.rs:141 [inline]
 <kernel::alloc::allocator::Kmalloc as kernel::alloc::Allocator>::free+0xc6/0x200 rust/kernel/alloc.rs:214
 <kernel::alloc::kbox::Box<kernel::sync::arc::ArcInner<rust_binder_main::process::NodeRefInfo>, kernel::alloc::allocator::Kmalloc> as core::ops::drop::Drop>::drop rust/kernel/alloc/kbox.rs:492 [inline]
 core::ptr::drop_in_place::<kernel::alloc::kbox::Box<kernel::sync::arc::ArcInner<rust_binder_main::process::NodeRefInfo>, kernel::alloc::allocator::Kmalloc>> usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804 [inline]
 core::mem::drop::<kernel::alloc::kbox::Box<kernel::sync::arc::ArcInner<rust_binder_main::process::NodeRefInfo>, kernel::alloc::allocator::Kmalloc>> usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/mod.rs:961 [inline]
 <kernel::sync::arc::Arc<rust_binder_main::process::NodeRefInfo> as core::ops::drop::Drop>::drop+0x1a9/0x2b0 rust/kernel/sync/arc.rs:404
 core::ptr::drop_in_place::<kernel::sync::arc::Arc<rust_binder_main::process::NodeRefInfo>> usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804 [inline]
 core::ptr::drop_in_place::<kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>> usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804 [inline]
 core::ptr::drop_in_place::<core::option::Option<kernel::list::arc::ListArc<rust_binder_main::process::NodeRefInfo, 15493408726748792400>>> usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804 [inline]
 <rust_binder_main::process::Process>::update_ref+0x1247/0x21a0 drivers/android/binder/process.rs:974
 <rust_binder_main::allocation::AllocationView>::cleanup_object drivers/android/binder/allocation.rs:445 [inline]
 <rust_binder_main::allocation::Allocation as core::ops::drop::Drop>::drop+0x153b/0x5360 drivers/android/binder/allocation.rs:258
 core::ptr::drop_in_place::<rust_binder_main::allocation::Allocation>+0x26/0x1a0 usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ptr/mod.rs:804
 <rust_binder_main::thread::Thread>::copy_transaction_data+0x6c90/0x8370 drivers/android/binder/thread.rs:1236
 <rust_binder_main::transaction::Transaction>::new+0x390/0x2070 drivers/android/binder/transaction.rs:85
 <rust_binder_main::thread::Thread>::transaction_inner drivers/android/binder/thread.rs:1356 [inline]
 <<rust_binder_main::thread::Thread>::transaction_inner as core::ops::function::FnOnce<(&kernel::sync::arc::Arc<rust_binder_main::thread::Thread>, &rust_binder_main::defs::BinderTransactionDataSg)>>::call_once usr/local/rustup/toolchains/1.91.1-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:250 [inline]
 <rust_binder_main::thread::Thread>::transaction::<<rust_binder_main::thread::Thread>::transaction_inner>+0x896/0x1090 drivers/android/binder/thread.rs:1331
 <rust_binder_main::thread::Thread>::write+0x1560/0xa0f0 drivers/android/binder/thread.rs:1470
 <rust_binder_main::thread::Thread>::write_read drivers/android/binder/thread.rs:1618 [inline]
 <rust_binder_main::process::Process>::ioctl_write_read drivers/android/binder/process.rs:1616 [inline]
 <rust_binder_main::process::Process>::ioctl drivers/android/binder/process.rs:1681 [inline]
 rust_binder_main::rust_binder_ioctl+0x1019/0x55c0 drivers/android/binder/rust_binder_main.rs:460
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0x132/0x1b0 fs/ioctl.c:893
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:893
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fdf3c19c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdf3d0e3028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdf3c415fa0 RCX: 00007fdf3c19c799
RDX: 00002000000001c0 RSI: 00000000c0306201 RDI: 0000000000000005
RBP: 00007fdf3c232c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdf3c416038 R14: 00007fdf3c415fa0 R15: 00007fff8f556e48
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:cgroup_rstat_updated+0x74/0x810 kernel/cgroup/rstat.c:86
Code: 48 3b d6 1a 87 48 c7 44 24 50 90 db 80 81 48 8d 4c 24 40 48 c1 e9 03 48 b8 f1 f1 f1 f1 f8 f3 f3 f3 48 89 4c 24 38 48 89 04 19 <e8> 47 c7 06 00 44 89 74 24 0c 4d 63 e6 bf 08 00 00 00 44 89 e6 e8
RSP: 0018:ffffc9000fb80000 EFLAGS: 00010802
RAX: f3f3f3f8f1f1f1f1 RBX: dffffc0000000000 RCX: 1ffff92001f70008
RDX: ffffc900016a1000 RSI: 0000000000000000 RDI: ffff88810ebce000
RBP: ffffc9000fb800c8 R08: 0000000000000003 R09: 0000000000000004
R10: 0000000000000000 R11: ffffffff815f4580 R12: dffffc0000000000
R13: ffff88810ebce000 R14: 0000000000000000 R15: ffffe8ffffc349d8
FS:  00007fdf3d0e36c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc9000fb7fff8 CR3: 000000011f682000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
   0:	48 3b d6             	cmp    %rsi,%rdx
   3:	1a 87 48 c7 44 24    	sbb    0x2444c748(%rdi),%al
   9:	50                   	push   %rax
   a:	90                   	nop
   b:	db 80 81 48 8d 4c    	fildl  0x4c8d4881(%rax)
  11:	24 40                	and    $0x40,%al
  13:	48 c1 e9 03          	shr    $0x3,%rcx
  17:	48 b8 f1 f1 f1 f1 f8 	movabs $0xf3f3f3f8f1f1f1f1,%rax
  1e:	f3 f3 f3
  21:	48 89 4c 24 38       	mov    %rcx,0x38(%rsp)
  26:	48 89 04 19          	mov    %rax,(%rcx,%rbx,1)
* 2a:	e8 47 c7 06 00       	call   0x6c776 <-- trapping instruction
  2f:	44 89 74 24 0c       	mov    %r14d,0xc(%rsp)
  34:	4d 63 e6             	movslq %r14d,%r12
  37:	bf 08 00 00 00       	mov    $0x8,%edi
  3c:	44 89 e6             	mov    %r12d,%esi
  3f:	e8                   	.byte 0xe8